System.InvalidCastException: Conversion from string "" to type 'Integer' is not valid. ---> System.FormatException: Input string was not in a correct format. at Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat) at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) --- End of inner exception stack trace --- at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) at _Staff_Chegadas.gv1_RowDataBound(Object sender, GridViewRowEventArgs e) in D:\Inetpub\wwwroot\BTTManager.com\_httpdocs\_Staff\Chegadas.ascx.vb:line 271